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Execute a logical binary shift on a positive 8-bit binary number and comprehend its impact on the number. Note: Perform logical left and right shifts, including multiple shifts. Bits shifted out of the register are lost, and zeros are introduced at the opposite end. The integer is multiplied or divided based on the shift direction, resulting in the loss of significant bits.

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Cambridge IGCSE Computer ScienceData representation

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Execute a logical binary shift on a positive 8-bit binary number and comprehend its impact on the number. Note: Perform logical left and right shifts, including multiple shifts. Bits shifted out of the register are lost, and zeros are introduced at the opposite end. The integer is multiplied or divided based on the shift direction, resulting in the loss of significant bits

  • This point belongs to Number systems, especially Number systems outcomes.
  • You need to be able to execute a logical binary shift on a positive 8-bit binary number and comprehend its impact on the number. Note: Perform logical left and right shifts, including multiple shifts. Bits shifted out of the register are lost, and zeros are introduced at the opposite end. The integer is multiplied or divided based on the shift direction, resulting in the loss of significant bits.
  • The key ideas to know are Demonstrate and Show.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

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DemonstrateShow

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Description

Binary Shift Example

Consider the 8-bit binary number 01101000. Perform a logical left shift and a logical right shift on this number.

  1. a

    State What is the result of a logical left shift on the binary number 01101000?

    Aim for approximately 1 distinct marking point.

    [1]
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